TITLE

Collisional current drive in two interpenetrating plasma jets

AUTHOR(S)
Ryutov, D. D.; Kugland, N. L.; Park, H.-S.; Pollaine, S. M.; Remington, B. A.; Ross, J. S.
PUB. DATE
October 2011
SOURCE
Physics of Plasmas;Oct2011, Vol. 18 Issue 10, p104504
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The magnetic field generation in two interpenetrating, weakly collisional plasma streams produced by intense lasers is considered. The generation mechanism is very similar to the neutral beam injection current drive in toroidal fusion devices, with the differences related to the absence of the initial magnetic field, short interaction time, and different geometry. Spatial and temporal characteristics of the magnetic field produced in two counterstreaming jets are evaluated; it is shown that the magnetic field of order of 1 T can be generated for modest jet parameters. Conditions under which this mechanism dominates that of the 'Biermann battery' are discussed. Other settings where the mechanism of the collisional current drive can be important for the generation of seed magnetic fields include astrophysics and interiors of hohlraums.
ACCESSION #
66903313

 

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